<!DOCTYPE html>
<meta charset="UTF-8">
<title>height composition with interpolate-size: allow-keywords</title>
<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#propdef-height">
<link rel="help" href="https://drafts.csswg.org/css-values-5/#interpolate-size">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<style>
:root {
  interpolate-size: allow-keywords;
}
.parent {
  height: 200px;
}
.target {
  width: 100px;
  height: 150px;
}
.target::before {
  display: block;
  content: "";
  width: 100px;
  height: 50px;
}
</style>

<body>
<script>
test_composition({
  property: 'height',
  underlying: 'fit-content', /* 50px */
  addFrom: '100px',
  addTo: '200px',
}, [
  {at: -0.3, expect: '120px'},
  {at: 0, expect: '150px'},
  {at: 0.5, expect: '200px'},
  {at: 1, expect: '250px'},
  {at: 1.5, expect: '300px'},
]);

test_composition({
  property: 'height',
  underlying: 'fit-content', /* ignored because the keywords aren't compatible */
  addFrom: 'min-content', /* 50px */
  addTo: '200px',
}, [
  {at: -0.3, expect: '5px'},
  {at: 0, expect: '50px'},
  {at: 0.5, expect: '125px'},
  {at: 1, expect: '200px'},
  {at: 1.5, expect: '275px'},
]);
</script>
</body>
